a. Oath, appointment and promotion of officers shall be made in conformity with applicable rules and regulations of the federal government.
b. Every officer duly commissioned shall, within ten days, after his commission is tendered to him or within ten days after he shall be personally notified that the same is held in readiness for him by any superior officer, take and subscribe to the oath of office prescribed by the Constitution of this state. In case of neglect or refusal to take and subscribe to such oath within the time mentioned, he shall be deemed to have resigned such office. Such oath shall be taken and subscribed before any officer authorized to take acknowledgments of deeds in this state, or some officer who has taken it himself and who is hereby authorized to administer the same.